"And among the people of Moses is a community" (Qur'an 7:159), meaning: a group. "Who guide by the truth," meaning: they call to it.
﴿وَمن قوم مُوسَى أمة﴾ أَي: جمَاعَة ﴿يهْدُونَ بِالْحَقِّ﴾ أَيْ: يَدْعُونَ إِلَيْهِ